Universal detachable device for realizing millimeter wave insulator welding

Abstract

The utility model discloses a general detachable device for realizing millimeter wave insulator welding, which comprises a general detachable device, a tube shell, a millimeter wave insulator, a screw and welding flux, the general detachable device comprises a base, a positioning pin, a screw cap and a spring, the tube shell is provided with a millimeter wave insulator mounting hole, and the screw cap is provided with a screw hole. Two sides of the insulator mounting hole are provided with connector threaded holes connected with the insulator, after the insulator is mounted on the tube shell, the universal detachable device is mounted on the shell by using screws through the connector threaded holes, and the solder can be solder paste or solder wires. The universal detachable device is simple in structure, convenient to install, detachable and low in cost, and solves the problem that the welding quality of the millimeter wave insulator in the millimeter wave assembly cannot be guaranteed.

Description

Technical Field

[0001] The utility model relates to a tooling structure, in particular to a universal detachable device for welding millimeter wave insulators, and belongs to the technical field of mechanical structural components. Background Art

[0002] As microwave components develop towards "miniaturization, lightness, high frequency, high performance, high power, multi-function and high reliability", the development of millimeter wave component technology is becoming more and more rapid. As a key component for the transmission of component and external system performance, the development of millimeter wave insulators is also accelerating. Due to the high operating frequency of microwave components, insulators can be equivalent to a section of coaxial transmission line. They are widely used at Ku frequency (18GHz). In the millimeter wave band (30GHz~300GHz), due to the lack of process experience, it is often difficult to obtain low loss and low voltage standing wave ratio during welding. At the same time, due to the small size of millimeter wave insulators, reliability risks such as low solder penetration and protruding shell surface affecting connector installation are prone to occur during welding. Generally, conductive adhesive bonding is used. As the application environment of microwave components becomes more and more harsh, in order to ensure the reliability of component bare chips, it is imperative to use the process of welding insulators to the tube shell. The same type of millimeter wave insulators will correspond to connectors of different specifications. Therefore, it is necessary to design a universal detachable device for welding millimeter wave insulators to solve technical problems such as solder penetration and protruding shell surface of millimeter wave insulator welding. Summary of the invention

[0003] To solve the above problems, the utility model discloses a universal detachable device for welding millimeter wave insulators. The technical solution has a simple structure, is easy to install, is detachable, and has low cost, thus solving the problem that the welding quality of millimeter wave insulators in millimeter wave components cannot be guaranteed.

[0004] A universal detachable device for realizing the welding of millimeter wave insulators, characterized in that it includes a universal detachable device, a tube shell, a millimeter wave insulator, a screw, and solder. The universal detachable device includes a base, a positioning pin, a screw cover, and a spring. The base has a positioning pin mounting hole, the spring is installed on the upper surface of the positioning pin, the screw cover and the base are connected by threads, the tube shell has a millimeter wave insulator mounting hole, and connector threaded holes interconnected with the millimeter wave insulator are provided on both sides of the millimeter wave insulator mounting hole. After the millimeter wave insulator is installed to the tube shell, the universal detachable device is installed to the shell through the connector threaded hole by screws, the positioning pin elastically fixes the millimeter wave insulator, and the solder can be solder paste or solder wire.

[0005] As an improvement of the utility model, the surface of the base is provided with a cover screwing installation threaded hole, a positioning pin through hole, and a flange.

[0006] As an improvement of the present utility model, the flange surface has a raised mounting through hole, the raised height of the mounting through hole is not less than 1 mm, the through hole is annular in size with a length of 4.0±0.1 mm and a width of 2.2±0.1 mm, and the center distance of the mounting holes on both sides is 10.4±0.1 mm. The raised mounting hole facilitates the pre-setting of solder, and the annular mounting hole is suitable for connectors with a mounting hole spacing on the shell of 8.6 mm to 12.2 mm.

[0007] As an improvement of the present utility model, the positioning pin is a cylindrical boss structure, which is convenient for positioning with the base.

[0008] As an improvement of the utility model, the positioning pin is made of 1Cr18Ni9Ti stainless steel to prevent solder from infiltrating the surface of the positioning pin during the welding process of the millimeter wave insulator.

[0009] As an improvement of the present invention, the diameter of the upper surface of the cylindrical boss of the positioning needle is The top of the boss is designed with a 45° chamfer, which is smaller than the outer diameter of the millimeter wave insulator, so as to facilitate the pre-setting of the solder.

[0010] As an improvement of the utility model, the upper surface of the cylindrical boss of the positioning pin is provided with a blind hole with a diameter of 0.8 mm and a length of 2.5 mm, which is used for inserting the inner conductor of the millimeter wave insulator and fixing the millimeter wave insulator.

[0011] As an improvement of the utility model, it is characterized in that one side of the surface is designed with knurling to facilitate installation with the base, and the other side is designed with threads.

[0012] As an improvement of the utility model, the specification of the spring is φ0.4×φ3×15mm, which ensures a certain elastic strength while preventing the spring from shaking in the base.

[0013] As an improvement of the utility model, the type of the screw is a pan head M2×12, which is convenient for fixing the universal detachable device and the tube shell.

[0014] Compared with the prior art, the utility model has the following advantages: 1) The utility model has a simple structural design, is easy to install, is detachable, and has low cost. When the tooling is used, the problem of the quality of the millimeter wave insulator welding in the millimeter wave component cannot be guaranteed is solved; 2) The utility model has a simple structure, and the universal detachable device for welding the millimeter wave insulator is fixed on the tube shell of the microwave component by screws, which is easy to disassemble and assemble; 3) The utility model is easy to operate, and the requirements for operators are reduced by using the universal detachable device for welding the millimeter wave insulator; 4) The utility model has a wide range of applications. Through the form of annular mounting holes, it can be used for the welding of millimeter wave insulators with a connector mounting hole spacing of 8.6mm to 12.2mm on the shell; 5) The utility model is detachable and easy to maintain. Through threaded connection, the base, positioning pin, screw cover, and spring can be replaced separately; 6) The technical solution of the utility model has a low cost, which is convenient for further promotion and application. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The present invention is a schematic diagram of the assembly connection of a universal detachable device for welding millimeter wave insulators.

[0016] Figure 2 A schematic diagram of a universal detachable device for welding millimeter wave insulators.

[0017] Figure 3 A schematic diagram of a base of a universal detachable device for welding millimeter wave insulators.

[0018] Figure 4 A schematic diagram of a positioning pin of a universal detachable device for welding millimeter wave insulators.

[0019] Figure 5 It is a schematic diagram of a screw cap of a universal detachable device for welding millimeter wave insulators.

[0020] Figure 6 It is a spring schematic diagram of a universal detachable device for welding millimeter wave insulators.

[0021] In the figure: 1. universal detachable device, 2. screw, 3. millimeter wave insulator, 4. solder, 5. tube shell, 6. screw cover mounting threaded hole, 7. base, 8. positioning pin through hole, 9. mounting through hole, 10. positioning pin, 11. blind hole, 12. screw cover, 13. knurling, 14. thread, 15. spring, 16. connector threaded hole, 17. millimeter wave insulator mounting hole, 18. flange, 19. boss chamfer. DETAILED DESCRIPTION

[0022] The present invention will be further described below in conjunction with the accompanying drawings and specific implementations. It should be understood that the following specific implementations are only used to illustrate the present invention and are not used to limit the scope of the present invention. Example

[0023] Example 1: See Figure 1 A universal detachable device for realizing millimeter wave insulator welding, characterized in that it includes a universal detachable device 1, a tube shell 5, a millimeter wave insulator 3, a screw 2, and a solder 4. The universal detachable device includes a base 7, a positioning pin 10, a screw cover 12, and a spring 15. The base 7 has a positioning pin 10 mounting hole, the spring 15 is installed on the upper surface of the positioning pin 10, the screw cover 12 is connected to the base 7 by threads, the tube shell 5 has a millimeter wave insulator mounting hole 17, and the millimeter wave insulator mounting hole 17 has connector threaded holes 16 interconnected with the millimeter wave insulator on both sides. After the millimeter wave insulator 3 is installed to the tube shell 5, the universal detachable device is installed to the shell through the connector threaded hole by screws 2, the positioning pin 10 elastically fixes the millimeter wave insulator 3, and the solder 4 can be solder paste or solder wire.

[0024] Example 2: Reference Figure 1 , Figure 2 , a schematic diagram of a universal detachable device for welding millimeter wave insulators, the base 7 of the universal detachable device 1 for welding millimeter wave insulators is characterized in that the surface of the base 7 has a screw cover mounting threaded hole 6, a positioning pin through hole 8, and a flange 18. The surface of the flange 18 has a raised mounting through hole 9, and the raised height of the mounting through hole 9 is not less than 1mm. The through hole is annular in size with a length of 4.0±0.1mm and a width of 2.2±0.1mm. The center distance between the mounting holes on both sides is 10.4±0.1mm. The positioning pin 10 is a cylindrical boss structure. The positioning pin 10 of the universal detachable device 1 for welding millimeter wave insulators is made of 1Cr18Ni9Ti stainless steel. The diameter of the upper surface of the cylindrical boss of the positioning pin 10 is mm, and the top of the boss is designed with a 45° chamfer 19. The upper surface of the cylindrical boss of the positioning pin 10 has a blind hole 11 with a diameter of 0.8 mm and a length of 2.5 mm. One side of the surface is designed with knurling 13, and the other side is designed with thread 14. The spring specifications are φ0.4×φ3×15mm.

[0025] Example 3: Reference Figure 2 , Figure 3, a schematic diagram of the base of a universal detachable device for welding millimeter wave insulators, the surface of the base 7 has a screw cover mounting threaded hole 6, a positioning pin through hole 8, and a flange 18, the surface of the flange 18 has a raised mounting through hole 9, the raised height of the mounting through hole 9 is not less than 1mm, the through hole is annular in size with a length of 4.0±0.1mm and a width of 2.2±0.1mm, and the center distance of the mounting holes on both sides is 10.4±0.1mm.

[0026] Example 4: Reference Figure 2 , Figure 4 , a schematic diagram of a positioning pin of a universal detachable device for welding millimeter wave insulators, wherein the positioning pin 10 is a cylindrical boss structure, and the material of the positioning pin 10 is 1Cr18Ni9Ti stainless steel. The diameter of the upper surface of the cylindrical boss of the positioning pin 10 is The upper surface of the cylindrical boss of the positioning pin 10 is provided with a blind hole 11 with a diameter of 0.8 mm and a length of 2.5 mm.

[0027] Example 5: Reference Figure 2 , Figure 5 , a schematic diagram of a screw cap of a universal detachable device for welding millimeter wave insulators, wherein a knurling 13 is designed on one side of the surface and a thread 14 is designed on the other side.

[0028] Example 6: Reference Figure 2 , Figure 6 , a schematic diagram of a spring of a universal detachable device for welding millimeter wave insulators, wherein the spring specification is φ0.4×φ3×15mm.

[0029] The utility model can also combine at least one of the technical features described in Examples 2, 3, 4, 5, and 6 with Example 1 to form a new implementation method.

[0030] The process of sintering millimeter wave insulators using a universal detachable device for millimeter wave insulator welding is as follows: 1. Clean and dry the insulator and shell to be welded; 2. Use tweezers to clamp the millimeter wave insulator to be sintered and insert it into the mounting hole of the shell; 3. Install the universal detachable device between the insulator to be sintered and the shell, wherein the boss blind hole of the positioning pin is butted with the pin core of the millimeter wave insulator, and the screw is adjusted at the annular through hole of the device according to the size of the mounting hole of the shell, and the spring provides elastic pressure for the positioning of the millimeter wave insulator and the shell; 4. Pre-place an appropriate amount of solder paste in the gap between the millimeter wave insulator and the tube shell; 5. Place the insulator and the tube shell on which the detachable device is installed on the heating table; 5. After the pre-placed solder paste is fully melted, add an appropriate amount of solder wire with the same composition as the solder paste in the gap between the millimeter wave insulator and the tube shell through the raised installation hole; 6. After the millimeter wave insulator is sintered, remove the tube shell from the heating table, cool it to room temperature, clean it, and inspect it with X-RAY; 7. After the detachable device has been used for a period of time, the elasticity of the spring weakens, unscrew the knurled screw cap, and replace the spring.

[0031] The technical means disclosed in the solution of the utility model are not limited to the technical means disclosed in the above-mentioned implementation mode, but also include technical solutions composed of any combination of the above technical features. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the utility model, and these improvements and modifications are also regarded as the protection scope of the utility model.

Claims

1. A universal detachable device for realizing millimeter wave insulator welding, characterized in that , comprising a universal detachable device (1), a tube shell (5), a millimeter wave insulator (3), a screw (2), and a solder (4), wherein the universal detachable device comprises a base (7), a positioning pin (10), a screw cover (12), and a spring (15), wherein the base (7) has a positioning pin (10) mounting hole, the spring (15) is mounted on the upper surface of the positioning pin (10), the screw cover (12) and the base (7) are connected by threads, the tube shell (5) has a millimeter wave insulator mounting hole (17), and connector threaded holes (16) interconnected with the millimeter wave insulator are provided on both sides of the millimeter wave insulator mounting hole (17), after the millimeter wave insulator (3) is mounted to the tube shell (5), the universal detachable device is mounted to the shell through the connector threaded hole by using the screw (2), the positioning pin (10) elastically fixes the millimeter wave insulator (3), and the solder (4) can be solder paste or solder wire.

2. The universal detachable device for realizing millimeter wave insulator welding according to claim 1, characterized in that: The surface of the base (7) is provided with a cover screwing installation threaded hole (6), a positioning pin through hole (8), and a flange (18).

3. The universal detachable device for realizing millimeter wave insulator welding according to claim 2, characterized in that: The surface of the flange (18) has a raised mounting through hole (9), the raised height of the mounting through hole (9) is not less than 1 mm, the through hole is annular in size with a length of 4.0±0.1 mm and a width of 2.2±0.1 mm, and the center distance of the mounting holes on both sides is 10.4±0.1 mm.

4. The universal detachable device for realizing millimeter wave insulator welding according to claim 1, characterized in that: The positioning needle (10) is a cylindrical boss structure.

5. The universal detachable device for realizing millimeter wave insulator welding according to claim 1, characterized in that: The positioning pin (10) is made of 1Cr18Ni9Ti stainless steel.

6. The universal detachable device for realizing millimeter wave insulator welding according to claim 4, characterized in that: The diameter of the upper surface of the cylindrical boss of the positioning pin (10) is The top of the boss is designed with a 45° chamfer (19).

7. The universal detachable device for realizing millimeter wave insulator welding according to claim 4, characterized in that: The upper surface of the cylindrical boss of the positioning needle (10) is provided with a blind hole (11) with a diameter of 0.8 mm and a length of 2.5 mm.

8. The universal detachable device for realizing millimeter wave insulator welding according to claim 1, characterized in that: One side of the surface is designed with knurling (13), and the other side is designed with threads (14).

9. The universal detachable device for realizing millimeter wave insulator welding according to claim 1, characterized in that: The spring specifications are φ0.4×φ3×15mm.

10. The universal detachable device for realizing millimeter wave insulator welding according to claim 1, characterized in that: The model of the screw (2) is a pan head M2×12.

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